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Broadcast Outages for WWVB
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| ��� | WWVB will be operating at 1/2 power (35 kW) during the daylight hours on weekdays from September 14, 2009 until about November 1, 2009.� The station will be undergoing maintenance during this period.� The station will continue to operate at full power (70 kW) during evenings and weekends during the maintenance period. |
During normal operation, the 60 kHz signal from WWVB is transmitted 24 hours per day, 7 days a week. The table includes periods since January 1, 2006 when the signal was off or intermittent for more than 5 minutes.
| Date | MJD | Began (UTC) | Ended (UTC) |
| 11-04-2009 | 55139 | 1327 | 1421 |
| 10-20-2009 | 55124 | 1157 | 1221 |
| 07-29-2009 | 55041 | 0703 | 0829 |
| 07-12-2009 | 55024 | 2303 | 2356 |
| 07-09-2009 | 55021 | 0547 | 0649 |
| 06-23-2009 | 55005 | 0244 | 0446 |
| 04-29-2009 | 54950 | 0056 | 0148 |
| 03-20-2009 | 54911 | 1827 | 1839 |
| 03-19-2009 | 54910 | 0023 | 0132 |
| 03-07-2009 | 54898 | 1415 | 1514 |
| 01-02-2009 | 54833 | 0317 | 0351 |